HIMIPref™ : Tweak of Server Settings

There are occasional problems with internet connections while the server is performing its calculations. These derive largely from the fact that the calculations are relatively lengthy and the client-side programme will not get a response from server-side for over five minutes.

This can particularly lead to “Gateway” problems when proxy-servers are involved in the client connection, as many gateways will drop a connection after five minutes by default.

I have adjusted some server settings that appear to have resolved a problem that may be related (perhaps by making the connection more sensitive?), using a suggestion from Denis Pitcher’s Blog. The problem was an error message received by HIMIPref™ from the .NET framework System.Net.WebException: The underlying connection was closed: An unexpected error occurred on a receive.

I have changed settings on the IIS administrator server-side: The “Connection time-out” has been changed from 900 seconds to 15; and HTTP keep-alives have been disabled. This matches settings I use when running the server-side locally, but have never before considered necessary when running remotely.

Should any change in behaviour be noted in the next few days, please let me know all the particulars.